1. New Approach to Detect and Classify Stroke in Skull CT Images via Structural Co-occurrence Matrix and Machine Learning
- Author
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Gabriel Bandeira Holanda, Pedro Pedrosa Rebouças Filho, Jefferson S. Almeida, and João Wellington M. Souza
- Subjects
Computer science ,business.industry ,Gaussian ,Sobel operator ,Machine learning ,computer.software_genre ,Support vector machine ,Euclidean distance ,Co-occurrence matrix ,symbols.namesake ,Naive Bayes classifier ,Skull ,medicine.anatomical_structure ,symbols ,medicine ,Artificial intelligence ,business ,Classifier (UML) ,computer - Abstract
Stroke is an injury that abruptly affects brain tissues. This disease is caused by a change in the blood supply to a particular region of the brain, and it results in the loss or reduction of its related functions. Cerebral vascular accidents affect 16 million people worldwide every year, and 6 million of these people die. However, another important problem related to strokes, besides mortality, is that many survivors have chronic consequences that are complex and heterogeneous. In this paper, a new approach to identify and classify stroke from a structural co-occurrence matrix (SCM) in skull CT images. To state the efficiency of the technique considered, a comparison with other important and well-known state-of-art feature extractors was performed. In addition, SCM was evaluated with two high-pass filters (Laplacian and Sobel) and two low-pass filters (Median and Gaussian). Regarding classifiers, Bayesian classifier, Optimum-Path Forest (OPF) and Support Vector Machines were used. The proposed approach using its optimal configuration and the OPF classifier with Euclidean distance had the highest average accuracy (99.40%), and the extraction time low, similar to other ones widely used and well known.
- Published
- 2019
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